I measured mine from the front of the bridge plate because my saddle are all over the place. I got 1 and 5/8 inches to the pole pieces on the J, and 4 and 5/8 inches to the treble side pole pieces on the P. Those may not be precisely accurate though, maybe you could average the numbers from all the replies you get.

I measured mine from the front of the bridge plate because my saddle are all over the place. I got 1 and 5/8 inches to the pole pieces on the J, and 4 and 5/8 inches to the treble side pole pieces on the P. Those may not be precisely accurate though, maybe you could average the numbers from all the replies you get.

Click to expand...

Don't measure from the bridgeplate. Those can be in slightly different places amongst brands, years, and models. The best place to get a measurement is from the 12th fret. This will place the pup exactly the same place as intended by the factory. I have these measurements but they are at work. I'll see if I can remember to bring them home (sometimes harder than solving for pi) and I'll post them.